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Marble Falls, TX Tap Water Quality 2026

Water quality report for Marble Falls, TX — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Marble Falls's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: City Of Marble Falls PWSID: TX0270026 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.84 ppb, 12% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

B

Marble Falls earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 1.84 ppb — 12% of the federal action level
PFAS sampled, too few results to judge
6 violations since 2015, 5 health-based
No violations currently open
Marble Falls's lead level vs. all Texas community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.84 ppb — 12% of the federal action level
✓ Lower lead than 41% of Texas utilities
Population Served
7011
~3725 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
6 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
12% of EPA action level
1.84 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.84 ppb, 12% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2018 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

6 violations are on record since 2015, of which 5 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility City Of Marble Falls
PWSID TX0270026
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 7,011
Service connections 3,725
Systems serving this area 3
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Marble Falls tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.84 ppb, 12% of the action level.
Does Marble Falls water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Marble Falls? ▼
City Of Marble Falls (PWSID TX0270026), one of 3 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2025-01-07. No significant deficiencies were recorded.

What Should Marble Falls Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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